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Oral composition
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a technology of oral composition and composition, applied in the field of oral composition, can solve the problems of deterioration of feeling and increased astringency upon us
Active Publication Date: 2018-03-20
KAO CORP
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On the other hand, phytic acid tends to exhibit an increased feeling of astringency depending on the amount thereof, and may also result in deterioration in feeling upon use.
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[0102]Hereinafter, the present invention is specifically described based on Examples. Herein, the content of each component is represented by % by mass unless particularly stated in tables.
examples 8 , 10 , 11 , 15
Examples 8, 10, 11, 15, and Comparative Examples 10, 13
[0141]Each dentifrice composition was prepared according to each formulation shown in Table 5. Next, the friction feeling and the feeling of astringency were evaluated by three subjects in the same manner as the above method.
[0142]Furthermore, the gloss-imparting effect on human teeth was evaluated according to the following method, and the surfaces of human teeth were observed by SEM. In addition, a composition where thickening silica and abrasive silica were replaced with purified water was prepared, and subjected to > in the same manner as in the liquid oral composition in each of Examples 5 and 6. Furthermore, the gloss-imparting effect and the whitening effect were evaluated according to the following methods.
[0143]The results are shown in Table 5.
[0144]>
[0145](Treatment Method of Teeth Extracted)
[0146]The tests with respect to the gloss-imparting effect and the whitening effect described later were performed by use of huma...
examples 16 to 17
[0154]Liquid oral compositions of the following formulations were prepared, respectively.
[0155]
Example 16: liquid oral composition 1(% by mass)Phytic acid (50% aqueous solution)0.6Sodium monofluorophosphate0.68Erythritol5.0Ethanol (95%)5.0Sorbitol liquid (70% aqueous solution)4.5Polyoxyethylene (40) hydrogenated castor oil0.8pH Adjuster (48% sodium hydroxide liquid)0.25Isopropylmethylphenol0.02Flavor0.15Paraben0.06Sucralose0.006Purified water82.934Total100.000(Amount in terms of fluorine atoms: 900 ppm)
[0156]
Example 17: liquid oral composition 2(% by mass)Phytic acid (50% aqueous solution)0.6Sodium monofluorophosphate0.38Erythritol5.0Ethanol (95%)5.0Sorbitol liquid (70% aqueous solution)4.5Polyoxyethylene (40) hydrogenated castor oil0.8pH Adjuster (48% sodium hydroxide liquid)0.25Triclosan0.02Flavor0.15Paraben0.06Saccharin sodium0.01Purified water83.23Total100.000(Amount in terms of fluorine atoms: 500 ppm)
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Abstract
The present invention relates to a dentifrice composition which removes a fine stain and a stain adhering to the surface of teeth sufficiently, enhances the whitening effect on teeth and the gloss-imparting effect on teeth, also increases the amount of fluorine adsorption to teeth, and decreases the feeling of astringency. The oral composition of the present invention comprises the following component (A): phytic acid or an alkali metal salt thereof in an amount of 0.04% by mass or more and 1% by mass or less in terms of phytic acid; and component (B): monofluorophosphoric acid or an alkali metal salt thereof in an amount of 500 ppm or more and 1500 ppm or less in terms of fluorine atoms, wherein a mass ratio of the component (A) to the component (B), ((A) / (B)), is 0.1 or more and 1.4 or less, and a fluoride ion-supplying compound (F) selected from the group consisting of sodium fluoride, potassium fluoride and ammonium fluoride, a polyvalent metal cation, and a polyphosphoric acid or a salt thereof are comprised in a limited amount, and the pH thereof is from 5.5 to 6.5.
Description
FIELD OF THE INVENTION[0001]The present invention relates to an oral composition.BACKGROUND OF THE INVENTION[0002]Human teeth are stained by adhesion of various staining substances, in addition to calculus and plaque, on the surfaces thereof, and are decreased in gloss. Such staining and a decrease in gloss are demanded to be prevented as much as possible also in terms of beauty. In order to solve such a problem, there have been developed various oral compositions in which phytic acid which is known to exert a removing effect on tobacco tar, a suppressing effect on calculus, and the like is used.[0003]For example, Patent Literature 1 discloses an oral composition in which a specific amount of a phytic acid or a salt thereof and a specific amount of pyrophosphoric acid or a salt thereof are contained in combination in a specific mass ratio, and the composition rapidly removes a minute stain adhering to the surface of teeth to exert an excellent gloss-imparting effect. In addition, Pa...
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